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    Method for manufacture of waterproof fibrous plate
    21.
    发明授权
    Method for manufacture of waterproof fibrous plate 失效
    防水纤维板的制造方法

    公开(公告)号：US4587070A

    公开(公告)日：1986-05-06

    申请号：US594759

    申请日：1984-03-29

    Applicant: Hajime Niwa ,  Katsumi Hironaka

    Inventor： Hajime Niwa ,  Katsumi Hironaka

    IPC: D21H19/10 ,  C04B26/26 ,  D21H17/61 ,  D21H19/16 ,  D21H27/00 ,  D21J1/08 ,  B29C67/02

    CPC classification number: D21H17/61 ,  C04B26/26 ,  D21J1/08 ,  Y10S264/32

    Abstract: This invention provides a method for the manufacture of a fibrous plate rich in water resistance, which comprises the steps of uniformly mixing and dispersing fibrous raw material and finely divided bituminous substance in water, molding the resultant aqueous dispersion in the shape of a plate, and heating the plate with a hot press thereby melting the bituminous substance contained in the fibrous material and converting the plate into a fibrous plate having the bituminous substance uniformly dispersed therein. The fibrous plate obtained by this method excels in water resistance, weatherability, and thermal insulation and passes the standard specification concerning joint plates for use in concrete structures.

    Abstract translation: 本发明提供一种制造富含耐水性的纤维板的方法，其特征在于包括以下步骤：将纤维原料和细分散的沥青物质均匀混合并分散在水中，将所得的水分散体模塑成板状， 用热压机加热板，从而熔化纤维材料中所含的沥青物质，并将该板转化为具有均匀分散在其中的沥青物质的纤维板。 通过该方法获得的纤维板在耐水性，耐候性和隔热性方面优异，并通过了关于用于混凝土结构的接头板的标准规格。

    Method for controlling caliper and edge and corner delamination of hardboard
    22.
    发明授权
    Method for controlling caliper and edge and corner delamination of hardboard 失效
    控制硬度板的硬度和边缘和角落分层的方法

    公开(公告)号：US4168200A

    公开(公告)日：1979-09-18

    申请号：US559387

    申请日：1975-03-17

    Applicant: Gerald P. Bilton

    Inventor： Gerald P. Bilton

    IPC: D21J1/00 ,  D21H27/00 ,  D21J1/08 ,  D21J1/18

    CPC classification number: D21J1/18 ,  D21J1/08

    Abstract: This relates to the manufacture of wet process hardboard. The invention involves supplying additional heat curable resin to the mid-thickness regions of the panel by injecting additional resin into the moving mat as it is being formed on a forming surface. The region of injection of the resin is selected so that the bottom of the partially formed mat is sufficiently consolidated to resist the passage of resin therethrough while at the same time the top of the mat is still sufficiently liquid so that disturbances of the fibers of the partially dewatered mat caused by the injection of the resin have an opportunity to mend. The resin may be injected into the longitudinal marginal portions of the mat in continuous fashion such that, after the edges of the final board product have been trimmed, the resin treated areas are exposed to view. The additional resin reinforces the edge portions and assists in providing uniform caliper of the board across its width. The resin may also be injected intermittently so that the resin-treated areas coincide with the corner portions of the mat after it has been cut to length thus reinforcing and assisting in providing uniform caliper as between the central portions of the board and the corner portions. In a further variation, the resin may be injected into the moving mat along lines spacedapart to coincide with the lines of cut of saws used to produce narrow strips of panelling which are later fabricated into lap siding. Each narrow board product ultimately produced has additional resin along its marginal edges and thus has additional strength and resistance to moisture penetration thus making it particularly useful for lap siding and the like.

    Abstract translation: 这涉及到制造湿法硬纸板。 本发明涉及通过在形成在成形表面上的附加树脂中将另外的树脂注入到移动垫中而向板的中间厚度区域提供额外的可热固化树脂。 选择树脂的注入区域，使得部分形成的垫的底部被充分固结以抵抗树脂通过其中，同时垫的顶部仍然足够的液体，使得纤维的干扰 由注射树脂引起的部分脱水垫有机会修补。 树脂可以以连续的方式注入到垫的纵向边缘部分中，使得在最终板产品的边缘已被修整之后，树脂处理区域暴露于视野。 附加树脂加强了边缘部分，有助于在其宽度上提供板的均匀卡尺。 也可以间歇地注入树脂，使得树脂处理区域在被切割成长度之后与垫的角部重合，从而加强并且有助于在板的中心部分和拐角部分之间提供均匀的厚度。 在进一步的变型中，树脂可以沿着间隔开的线路注入到移动垫中，以与用于产生窄条板条的锯切线重合，随后将其制成搭接壁板。 最终生产的每个窄板产品都沿其边缘边缘具有额外的树脂，因此具有额外的强度和抗潮湿渗透性，因此使其特别适用于搭接壁板等。

    Fibrous board products having improved surface
    23.
    发明授权
    Fibrous board products having improved surface 失效
    具有改进表面的纤维板产品

    公开(公告)号：US3870544A

    公开(公告)日：1975-03-11

    申请号：US26392272

    申请日：1972-06-19

    Applicant: DOMTAR LTD

    Inventor： SHISKO WALTER S

    IPC: B05D7/06 ,  D21J1/08 ,  B44D1/092

    CPC classification number: B05D7/06 ,  B05D3/104 ,  D21J1/08 ,  Y10T428/31855

    Abstract: Fibreboards made from lignocellulosic fibres and painted with a water-based paint have a tendency to ''''brown'''' on the surface. Such browning is prevented by coating the surface of the fibreboard with a solution of a water-soluble salt of barium, calcium, strontium or lead prior to painting with a water-base paint. A preferred solution is one of chloride.

    Abstract translation: 由木质纤维素纤维制成的纤维板和涂上水性油漆的表面有倾向于“棕色”的倾向。 在用水基涂料喷涂之前，用钡，钙，锶或铅的水溶性盐溶液涂覆纤维板的表面可防止这种褐变。 优选的溶液是氯化物之一。

    Ceiling tile carrying anti-sag coating
    24.
    发明授权
    Ceiling tile carrying anti-sag coating 失效
    天花板搭载防汗涂层

    公开(公告)号：US3655431A

    公开(公告)日：1972-04-11

    申请号：US3655431D

    申请日：1969-06-02

    Applicant: AMERICAN CYANAMID CO

    Inventor： HOUSE RONALD RAYMOND

    IPC: D21J1/08 ,  E04B9/04 ,  C03C25/02

    CPC classification number: E04B9/04 ,  D21J1/08 ,  Y10T428/31652 ,  Y10T428/31667

    Abstract: The sag resistance of ceiling tile of the ''''lay in'''' type coated with a melamine-formaldehyde-carbohydrate resin (wherein the weight of the carbohydrate is up to one-half the weight of the melamine-formaldehyde) is about the same as the sag resistance of ceiling tile coated with an all melamine-formaldehyde resin. The presence of carbohydrate permits a cheapening of the product and in preferred instances an improvement in performance.

    Abstract translation: 涂有三聚氰胺 - 甲醛 - 碳水化合物树脂（其中碳水化合物的重量高达三聚氰胺 - 甲醛的重量的一半）的“铺设”型天花板瓦片的下垂阻力与下垂大致相同 涂覆全密胺甲醛树脂的天花板瓦的阻力。 碳水化合物的存在允许产品更便宜，并且在优选的情况下可以提高性能。

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